This is probably the wrong forum, but I'm not sure where to post this question. I'm looking for a glass slide with a tapered OUTSIDE. Not inside, and not flared with a curved or radiused outside. All the slides i find are either straight like a pipe or flared with a curve. I broke my best slide the other night at rehearsal. It was made from wine bottle neck with straight tapered sides. It took about 6-8 failed attempts to make one that I liked and I really don't want to go through that again. It's just annoying. I'm also open to brass or ceramic suggestions that have the same kind of taper.